If you already own a Nikon body, and you want to take professional looking photos, then the Wedding Photographer Essentials Package for Nikon is the perfect fit for you. Whether you shoot with a D3100 or a flagship D4, this combination covers most of your focal length needs. The 24-70mm satisfies your wide-angle and portrait needs. The 50mm is a fast prime that allows you to shoot in low-light situations without the use of external flash. But if you do need a flash, the SB-910 is also a part of this package. It will help illuminate areas that are poorly lit. Finally, the 70-200mm provides the ability to capture candid moments from a distance.